2001 Toyota Tundra Trailer Lights Not Working

If it doesnt work you might have some loose connection or blown fuse on the running light circuit.

2001 toyota tundra trailer lights not working. If the signals are correct going into the box you know that the truck is not the problem. Issue was a blown 30A fuse on the Tow Tail circuit which was not obvious to find on the circuit map as the Tow fuses are a bit spread out in the fuse block. If yes then check the trailer plug.

Brake lights and indicator lights work fine. It was feasted on three trailers. If they dont work then as Toxarch says your trailer has a bad ground.

Checked trailer plug no power checked under hood 30a fuse is good trailer tow relay has no power. I called the dealership and my sales guy said he will check if it is covered by the 3yr30000 my truck is a 10 and I bought it used in Feb 2011. When I press the brake the tail light lights up but not the 3rd brake light.

2005 Toyota Tundra. Asked by JamesDean in Poway CA on July 03 2010. Interestingly I bought a lcd tester that you plug into the 4 pin connection it worked.

Discussion Starter 1 Feb 21 2007. They light with the headlights but do not engage when i apply the brake. The brake lights work reverse and signal work just fine just not the tail lights when I turn the headlight switch on.

Also the 3rd brake light is not working either. Trailer brake and turn lights not working on tundra running lights work - All lights and brakes work with other vehicles brake and turn signal do not work with my Tundra. Use a circuit tester like 40376 if needed to test the wires going into the converter box from the truck.